In the Vinony graph
Vinony's link graph records 20 inbound references to roff, and connects out to Bell Labs, typesetting and Douglas McIlroy.
It is catalogued under the topic Typesetting software.
Vinony links it to 7 Wikipedia language editions.
Connections
Bell Labs
Entity
typesetting
Entity
Douglas McIlroy
Entity
Research Unix
Entity
operating system
Entity
International Standard Book Number
Entity
Unix
Entity
computer program
Entity
digital object identifier
Entity
Dennis M. Ritchie
Entity
typography
Entity
word processor
Entity
programmer
Entity
markup language
Entity
Ken Thompson
Entity
Unix-like operating system
Entity
Multics
Entity
BCPL
Entity
command
Entity
PDP-11
Entity